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翰林B4課p227_9
Author:
廖傑成
翰林B4課p.227_9
GeoGebra
New Resources
柱體建築師
找出對稱軸
兩位數加法
錐體建築師
兩位數除以一位數（二）
Discover Resources
橢圓
三角形的三角和及外心、內心圓
P53_3b
高考椭圆题的动态演示1.许兴华数学
绕圆旋转004
Discover Topics
Centroid or Barycenter
Binomial Distribution
Similar Triangles
Rational Numbers
Diagrams